Car roof



s ept. 15, 1925. 1,553,927l

C. D. ESONSALL.Y

CAR ROOF Filed Nov'. 19. 1924 1li/l l [3 Patented Sept. 15, 1925.

UNITED STATESv PATENTV OFFICE.

CHARLES DAVID BONSALL, OF PITTSBURGH,

PENNSYLVANIA, ASSIGNOR TO P. H.

OF PENNSYLVANIA.

'GAR ROOF.

Application filed November 19, 1924. Serial No, 750,839.

To all whom 'it may concern:

Be it known that I, CHARLES DAVID BON sALL, a citizen of the United States, and a resident of the city of Pittsburgh, county of Allegheny, and State of Pennsylvania, have invented a new and useful Improvement in Car Roofs, of which the following is a specification.

This invention relates to car roofs of the all-steel type wherein the roof sheets eX- tend from side plate to side plate and are connected along their side margins by upstanding seams that are covered by weatherproofing caps which function as exterior carlines or frame members to brace and stiftenV the car body.

One of the principal objects of the present invention is to produce a roof of the above type which will be stiffer and stronger than previous roofs of the same weight of metal. bility, and cheapness of construction.

The invention consists principally-in a roof of the above type wherein 4the sheets are rigidly secured together and to the side plates and have a snug fit in the carlines, whereby said sheets serve as direct frame members in combination with the carlines to brace and stiften the car body. The invens tion also consists in the parts and in the combinations and arrangements of parts hereinafter described. and claimed.

In the accompanying drawing, which forms part of this specification and wherein like symbols refer to like parts wherever they occur, j.

Fig. l is a plan view of a portion of a car roof embodying my invention;

Fig. 2 is an enlarged transverse section through one-half of the roof on the line 22 in Fig. l;

Fig. 3 is an enlarged vertical cross-section through one of the roof seams, the section being taken through one of the supporting brackets for the ruiming boards on the line 3-3 in Fig. 2;

Fig. l is a similar section taken in the region of one of the bolts that secure the lapped seam flanges together'on the line 4-4 in Fig. 2; and

Fig. 5 is a similar cross-section at the eaves of the car on the line 5--5 in Fig. 2.

The present roof comprises transversely arranged load sustaining metal roof sheets 6, which extend from eaves to eaves of the Other objects are simplicity, dura-1 car. The eaves ends of the roof sheets are supported on and positively secured to the outwardly extending fianges of angle-bar side plates 7 by rows of rivets 8 and are preferably provided at their eavesends with depending drip flanges 9 that overhang the outer edges of the side plates. The'roof sheets, which are pressed from rectangular blanks of sheet metal, slope downwardly on.

opposite sides of the ridge to form a pitch or arcuate roof and are provided along their adjacent side margins with raised hollow ribs or seam fianges V10 having flat tops and sides. A

rIhe hollow rib of one sheet overlaps the hollow rib of the next adjacent sheet, thus forming a hollow seam A between the body portions of the sheets. Each of these ribs or seam flanges 10 comprises an upstanding web portion extending body of the sheet and having at the top thereof a lateral top fiange whose outer edge is provided with a depending lipv or flange. The ribs are preferably of uniform width and depth from the ridge to points adjacent to the eaves where they are curved downwardlyl and .mergeinto the plane of the body of the sheets adjacent to the inner faces of the side plates, whereby'said sheets have wide flat eaves end portions adapted to bear flatwise on the side plates. The surplus meta-l gained by stopping the ribs short of the eaves is utilized in widening the flat eaves portions of the roof sheets, thereby increasing the extent of the sheet lap at the eaves and providing space for additional rivets for securing the lapping portions of the sheets together and to the side plates. By thisv arrangement, the sheets act after the manner of braces or upwardly from theV gussets to resist lateral stresses which tend to distort the car frame. The overlapped ribs or seam anges are rigidly secured together, preferably atk points adjacent to the ridge and eaves, by bolts 1l that extend through registering the ribs or seam 'flanges and are threaded at their lower endsy to receive nuts.

rlhe hollow upstanding roof seams are `straddled by inverted channel-shaped lstiffprovided with ening members or caps 12 lateral base flanges 13 that rest on the body portions of the sheets `and oppositefsides of the seams. The stiifening members or caps, which constitute outside carlines,

holes in the tops of are of considerably less closely einbracethe upstanding Aroof seains and extend Jfrom eaves to eaves of the lcar where they are provided with depending eaveslflanges 14C` that overlap. the. depending eaves iianges AS'otthe. adjacentroot sheets. The channel-shaped rib portions of the outside carlines are curved downwardly at-the eaves and inerge into theplane of the base flanges 13 at points wherethey are turned down toforinthe depending -end flanges 14. The surplusnietal resulting from. the downturnedeavesendportions of the carlines is utilized in widening out the eaves .endpo'rtions. of [the base flanges which. are secured to V.the side lplates by the rivets -8 which secure .the ilat. overlapped eaves portions of adjacentfsheets to the. side, plates. The root seams-.have .alsnugit in the c arlines,-b ut i I depth than the carlines, thereby A providing spaces.k between the topp. saidseamsandfthe top of the said carline .sniiioient to ,accommodate the bolts 11`that secure'the lapped seam langestosettlervRunning boards y 15I extend g longitudinally oi. .the car .at the ridgefand are secured vto running. board-saddles l16.located above the carlines. The vrunning hoard .saddles 16 extendlongitudinally of the `carlines at the ridge and are .secured thereto by `angleshaped .brackets :17. k One .flange ot a bralretl'? Iprojects..upwardly ,and is rigidly secured rto one .side .of .the yrunning board saddle by afhorizontal bolt 18 ;..and the otherV flan-*gelv of usaid ,braclretfrests on the. topl of the carline .and is-preferably' secured lthereto ley-means otrivets.

.l/lith; the Y.arrangernent described, the roof sheets arepositivelyjsecured to each other and t0 fthe .Side plates i and the @ai-lines closely V.embrace .the roof Vfsearns @and thus act after the inanner of sheaths to .stien said...searns,.whereby the sheetsand carlines cooperate in strengt'her1/iing thereof -jand stiffeningthe roof fname iagainststresses tendingqtovdistortsaidraine and shear these- 14curing rivets. It is noted ,that this increased istrength in the. seams orjoints enables `a roof tobe producedthat .will;be stiiersand stronger -thanprevious lroofs of the same weight otnietal. `It is also noted that the ...outside car-lines cover the bolt-s thatsecure together; the seain flanges. of adjacent sheets 'and ;thereby .prevent leakage around the'bolts.

The `herein'beiore described .arrangement is applicableto-roofshaving-side plates and. .seams of yvarious sections;

s v n therefore., l' do not -wish to 'berlirnitedfto the exact side plate and seam constructions shown in the drawing.

What I claim is: 1. A car roof comprising aplurality of 5 yload sustaining roof'sheets extending -rorn side plate to side plate and rigidly connected thereto vand to each other, said sheets having hollou7 upstanding ribs formed therein extending transversely of the car, and outside carlines .extending from ,side

plate to side lplate .and .rigidly .secured `there-to,

said carlines covering said hollow ribs and snugly fitting the sides thereof.

Q. A carroof coinprising a plurality of load sustaining roo'lt` sheets extending from side plate to side plateand rigidly connected thereto andto eachother, 4 faid roofsheets having hollon7 upstanding ribs formed. in their adjacent side marginal portions that are lappedand rigidly secured together to forni hollow seains extending .transversely of the car, Aand .outside carlines ,of substantially inverted channel-shaped .section extending from side plate-to sideplate frand rigidly secured thereto, said .carlines/ fcovering said kribs 1and kclosely embracing fthe sides thereof.

3f .A Garroo-. comprising .a-pluralityof roof sheets extending from side plate Ato side plate and rigidly securedjthereto, said roof sheets having theirl adjacent sideniarginal portions shaped .j and rigidly vsecured together vtogforin hollow upstandingseainS, and outside carlinejs extending ltroni side plate to sideI plate y*and rigidly securedthereto,. said carlines straddling"y said hollow seains with their lsidewalls in direct contact-with the 'side walls of the seams.

ya. 1A car root comprsinga pluralityof load sustaining -roo y sheets.y extending 4from side plateto side plate .and rigidly connectedl thereto, their adj acent-lside marginalI portions .shapedand yrigidly secured 4together cured to said Yside yplates,.said carlines .closely `embracing .the sidesfof said hollow seams andr being .spaced rornthe; tops thereof.

5. A carirzoofcomprisinga plurality of load sustaining roof sheets extendingfrom side.y plate tofside plate and rigidly connected thereto,.their vadjacent .side marginal portions. shaped .and rigidly secureditogether to forni hollow xupstanding seams that .extend transversely of the car, outside carlines covering said hollow seamsand rigidlysecured to said side plates, said carlines yclosely embracing the sides vof said sea1ns..and being spaced from the tops. thereof, .and running board .saddles supported by and secured toA said carlines Aindependently of saidrooi' seams.

6. 'A car rootl comprising a pluralityof roof sheets extending troni side plate Ato side plate Vand rigidly secured-thereto, s aidroof sheets having upwardlyv oiiset side marginal portions that are lapped Vto forni hollow-upstanding seams, and outside carlines extending trom side plate to side plate andy rigidly secured thereto, said carlines straddling llO said hollow seam's with their side walls in direct Contact with the side walls of the seams.

7. A ear roof comprising a plurality of roof sheets extending from side plate to side plate and rigidl)7 secured thereto, said roof sheets having upwardly offset side marginal portions that are lapped and rigidly secured together to form hollow upstanding 10 seams of substantially inverted channelshaped section, and outside earlines of substantiall channel-shaped section extending from si e plate to side plate and rigidly secured thereto, said oarlines straddling said hollow seams with their side walls in direct Contact with the side walls of the seams.

Signed at New Kensington, Pa., this 14th day of N ov., 1924:.

CHARLES DAVID BONSALL. 

